Question

How do genes control the cell cycle?

Answer 1

check point gene

Explanation:

protein products of 'checkpoint genes' monitor whtether a cell's DNA has been copied com-pletely, whether it is damaged, and even whether enough tiomes to support division are available. These check point proteins interact with other cell cycle controls to delay or stop the cell cycle whilte simul-taneously enhancing transcription of genes involved in fixing a problem. After the problem is corrected, the brakes are lifted and the cell ycle proceeds. If the problem stays uncorrected, other check point proteins cause the cell to self-destruct